package cn.xaut.动态规划;

import java.util.Scanner;

public class test {

    public static void main(String[] args) {

        Scanner input = new Scanner(System.in);
        while (input.hasNextInt()) {
            int x = input.nextInt();
            int y = input.nextInt();
            System.out.println(x + y);
        }
    }
}
